====== Information ======

  * Dell Latitude 5591
  * [[bios;ifr_dumps;dell_latitude_5591_1.37.0|1.37.0]]

====== Speed Shift Tech Interrupt Control ======

  * https://forums.blurbusters.com/viewtopic.php?t=11586

  setup_var_cv Setup 0x769 0x1 0x0

====== Maximum GT frequency ======

****

  setup_var_cv Setup 0x82B 0x1 0x18

====== Overclocking Lock ======

  * Enable/Disable Overclocking Lock (BIT 20) in FLEX_RATIO(194) MSR

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x659 0x1 0x0

====== CFG Lock ======

  * Configure MSR 0xE2[15], CFG Lock bit

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x5BD 0x1 0x0

====== DVMT Pre-Allocated ======

  * Select DVMT 5.0 Pre-Allocated (Fixed) Graphics Memory size used by the Internal Graphics Device

  * Default: Unknown
  * Ideal: 64M ''2''

  setup_var_cv Setup 0x8D2 0x1 0x2

====== DVMT Total Gfx Mem ======

  * Select DVMT5.0 Total Graphic Memory size used by the Internal Graphics Device

  * Default: Unknown
  * Ideal: MAX ''3''

  setup_var_cv Setup 0x8D3 0x1 0x3

====== Above 4GB MMIO BIOS assignment ======

  * Enable/Disable above 4GB MemoryMappedIO BIOS assignment
  * This is enabled automatically when Aperture Size is set to 2048MB

  * Default: Disabled ''0''
  * Ideal: Enabled ''1''

  setup_var_cv Setup 0x8D7 0x1 0x1

====== Aperture Size ======

  * Select the Aperture Size

  * Default: 256MB ''1''
  * Ideal: 2048MB ''15''

  setup_var_cv Setup 0x821 0x1 0xF

====== Aggressive LPM Support ======

  * Enable PCH to aggressively enter link power state

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0xA7E 0x1 0x0

====== RC6(Render Standby) ======

  * Check to enable render standby support

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x81B 0x1 0x0

====== Panel Scaling ======

  * Select the LCD panel scaling option used by the Internal Graphics Device

  * Default: Auto ''0''
  * Ideal: Off ''1''

  setup_var_cv Setup 0x81A 0x1 0x1

====== WatchDog ======

  * Enable/Disable WatchDog Timer

  * Default: Enabled ''1''
  * Ideal: Disabled ''0''

  setup_var_cv Setup 0x7D1 0x1 0x0